Plastering-machine



(No Model.) 2 Sheets-Sheet 1. D. W. MILES.

PLASTERING MACHINE.

Patented Feb. 28, 1888.

IWVEJVTOR WITJVESSES (No Model.) I 2 Sheets-Sheet 2. D. W. MILES.

PLASTERING MACHINE.

Patented Feb. 28

UNITED STATES PATENT Urricn.

DUDLEY W. MILES, OF GLEN ELDER, KANSAS.

PLASTERING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 378,453, datedPebruary 28, 1888.

Application filed May 13, 1887. Serial No. 233,130.

To aZZ whom it may concern.-

Be it known that I, DUDLEY W. MrLEs, a citizen of the United States, residing at Glen Eider, in the county of Mitchell and State of Kansas, have invented a new and useful Improvement in Plastering-lllachines, of which the following is a specification.

My invention relates to an improvement in plastering machines; and it consists in the peculiar construction and combination of devices, that will be more fully set forth hereinafter, and particularly pointed out in the claims.

In the drawings, Figure l is a perspective view of one form of my invention adapted for use in plastering walls. Fig. 2 isa vertical longitudinal sectional view of the same. Fig.3. is a perspective View of a modified. form of my invention adapted for use in plastering ceilings. Fig. 4 is a vertical transverse sectional view of the same, showing (in dotted lines) the table turned to a vertical position. Fig. 5 is a detail sectional view.

A represents a vertical longitudinally-adjustable frame comprising the bars B.

C represents a horizontal frame which projects from the rear side of the frame A, at the bottom thereof, and is braced to the frame A by means of inclined bars D.

E represents a similar horizontal frame which projects rearward from the upper end of frame A, and is braced by downward and forward inclined bars F. On the inner sides of the bars B are vertical grooves G.

H represents a hopper which has its rear side inclined downward and forward and has its front side vertical, as shown, and the said hopper is provided on its sides with projecting tongues I, that fit in the grooves G. These tongues project for a slight distance below the bottom of thehopper, and the front sides thereof are inclined downward and outward at a slight inclination, as shown, and on the front sides thereof is secured an inclined plate, K, the upper edge of which communicates with the lower side of the hopper. The front side of the hopper is formed by a vertical plate, L. A space is left between the opposing edges of the plates K and L, which forms a discharge opening or throat for the hopper, and the said opening or throat is adapted to be closed by a vertically-movable slide, N.

At the UDDBJ. side of the frame A is a pul- (No model.)

ley, N, and at the rear side of the frame E is a similar pulley, O.

P represents a cord or rope which is atu tached to the hopper, and passes over the pulleys Nand 0, and then descends to the ground. The function of this cord is to raise the hopper in the frame. It will be readily understood that the weight of lhe hopper will cause it to descend in the frame when the cord is released. The frame G and the lower end of the frame A are provided with supporting rollers or casters R, by means of which the machine may be readily rolled over the floor.

S represents a winclrwhich is journaled between the brace bars I), and to the said winch connected the dcpon-zling end of thc elevating cord or rope. At the upper and lower sides of the frame A. are horizontally-inovable slides or gages T.

The operation of this form of my invent-ion is as follows: The throat or discharge-opening of the hopper is closed by the slide when the hopper is lowered, and the said hopper is filled with mortar in a suit-able plastic condition to be applied'to the wall. The machine is moved to the wall so that the flat horizontal side of the hopper is presented thereto, and the gages are set toprevent the frame A from coming in contact with the wall and to secure the frame at a distance from the wall corresponding to the desired thickness of the coat of plaster to be applied thereto. The slide is then opened,and the operator turns the winch, and thereby winds the elevating cord or rope and causes the same to raise the hopper in the frame. As the hopper moves upward, the mortar is discharged therefrom against the wall in a thin chat, and the downward and forward inclined surface K causes the mortar to be smoothed and forced firmly against the wall as the hopper rises, thereby completing the operation of applying the plaster to the wall. VVhcu the hopper reaches the upper end of the frame A,the slide is lowered, so as to close the discharge openingof the hopper. The latter is then lowered in the frame and the frame is moved to one side, and the operation before described is repeated until the wall is entirely plastered. The frame A is made longitudinally adjustable, in order to adapt the machine to plaster walls of different heights.

IOU

The construction of the form of device shown in Figs. 3 and 4 and adapted to plaster the ceilings is as follows:

T represents a vertical longitudinal frame provided at its ends with the vertical standards U, which have vertical grooves on their opposing sides. At the upper ends of the standards are journaled pulleys V, and at the lower ends thereof are journaled pulleys W.

X represents the longitudinal frame provided at its extremities with vertical bars Y, that fit in the grooves on the inner sides of the standards U. The said bars are provided with anti-friction rollers which bear against the inner sides of the grooves.

Z represents a table which is pivoted between the upper ends of the bars Y. This table is provided on its upper side, at its center, with the longitudinal groove A, and at suitable distances from the said groove, on opposite sides thereof, are parallel grooves B. The sides and ends of the table are formed by vertically-movable slotted plates 0, and setscrews D extend through the said slots and enter the sides and ends of the table, and thereby secure the plates thereto and adapt the same to be vertically adjustable.

E represents a hook rod which is pivoted to one side of the table, at one end thereof, and is adapted to engage a keeper or eye, F, secured on the inner-side of one of the bars Y. By disengaging this hook-rod from the said keeper or eye the table may be turned to a vertical position, as indicated in dotted lines in Fig.4, and thereby adapt the machine to be carried through an ordinary doorway.

G represents a winch which is journaled transversely in the center of the frame T.

' H represents cords which extend from the winch under the pulleys W, up over the pulleys V, and downward to the lower ends of the bars Y. By turning .the said winch the cords or ropes will be tightened, and thereby caused to raise the framecarrying thtable until the latter reaches the ceiling, and by turning the winch in the contrary direction the latter will be lowered from the ceiling, as will be very readily understood.

I represents an inclined board which is provided on its under side with depending tongues K, adapted to fitin the grooves B, and thereby bring the lower edge of the plate flush with the upper side of the table. The ends of the tongues K which project beyond the lower edge of the inclined plate are inclined, as shown, so as to scoop the mortar from the bottom of the grooves 13 and force the same in the inclined plate when the latter is moved longitudinally on'the table, as will he hereinafter described.

L represents endless operating-cords which are attached to the under side of the plate I, at the center thereof, and extend through the groove A. The said cords pass over pulleys M on a shaft, N, journaled in one end of the table, and the said shaft N has a pulley, 0', connected by an endless cord or belt, P, to a wheel, R, on a shaft','S, that is journaled in brackets that project from one of the standards U, and has a crank-handle, T.

The operation of this form of my invention is as follows: The table Z is covered with mortar and the sliding plates 0 are caused to project above the table a distance corresponding to the desired thickness of the coat of mortar to be applied to the ceiling. The table is then elevated, as before described, until it reaches the ceiling, and the operator turns the shaft S by means of the crankhandle Tflthereby causing the plate I to move longitudinally over the table,and therebyapply the mortar thereon against'the ceiling, as will be readily understood. The table is then lowered, the frame adjusted to one side asuitable distance, the plate I is moved backward on the table, mortar is applied on the same, and the operation before described is repeated.

Having thus described my invention, I claim- 1. The combination of the vertically-movable table Z, having the grooves B and the vertically-adjustable sides 0, with the longitudinally-movable plate 1, arranged on .the table and having the depending tongues fitting in the grooves B, for the purpose set forth, substantiallyas described.

2. The combination of the vertically-movable table, having the vertically-movable sides 0, with the longitu'dinally-movable inclined plate 1, arranged on the upper side of the table, substantially as described.

3. The combination of the table adapted to receive the mortar, having the grooves B, the pulleys at the ends of the table, the endless belts conneeting the pulleys and extending through the grooves,and the longitudinally-movable plate arranged on the table and connected to the endless belts, substantially as described.

4. The combination of the table adapted to receive the mortar, the pulleys at the ends thereof, the endless belts connecting the pulleys and extending over the table, the longitudinally'movable plate arranged on the table and connected to the endless belts, the crankshaft S', having the pulleys R, and the endless belt connecting the said pulley to the pull- IIO leys that operate the plate, substantially as described. g

In testimony that I claim the foregoing as my' own I have hereto affixed my signature in presence of two witnesses.

- DUDLEY V. MILES. \Vitnesses:

MAYO Rouse, ISAAC llICBLAIR. 

